/Engine/Plugins/Interchange/Runtime/Source/FactoryNodes/Public/InterchangeSkeletalMeshLodDataNode.h
Return the number of mesh geometry this LOD will be made of. Mesh uids can be either a scene or a mesh node. If its a scene it mean we want the mesh factory to bake the geo payload with the global transform of the scene node.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Interchange | Node | SkeletalMeshLodData") int32 GetMeshUidsCount() const